Details are not immediately clear, including whether the train was a freight or passenger locomotive.
The Seville Airport in Spain has been shut down in the wake of the crash.
Two men had opened fire in a parking lot outside a controversial art exhibit featuring the Prophet Muhammad.
Participants in the Ferguson, Missouri, protests say Baltimore leaders can calm the city if they show that police will be held accountable.
Maryland Gov. Larry Hogan said his decision to deploy the National Guard to Baltimore Monday was "a last resort" to restore order.
Baltimore Mayor Stephanie Rawlings-Blake said the city is "deploying every resource possible to gain control of this situation."
As protests roil Baltimore after Freddie Gray's funeral, Maryland's governor condemned "malicious attacks" and called the National Guard into action.
A Baltimore police spokesman did not refer to those who participated in the violence as protesters or demonstrators.
Seven officers were injured when Baltimore police confronted demonstrators protesting the death of Freddie Gray while in police custody.
A tsunami warning was lifted late Sunday.
The low-cost Germanwings, a Lufthansa subsidiary founded in 2012, had had no crashes or fatalities.
Germanwings Airbus A320, carrying at least 144 passengers and six crew members, crashed in southern France on Tuesday while flying from Barcelona to Dusseldorf.
The attacks occurred when bombers blew themselves up at the Badr and al-Hashoosh mosques in Sanaa during noon prayers. No group immediately claimed responsibility.
Authorities on Friday cornered the suspects in the industrial town of Dammartin-en-Goële with hundreds of security forces on-site.
Twelve people were killed on Wednesday by at least two armed gunmen in a shooting at the Paris headquarters of a satirical magazine.
AirAsia Flight QZ8501 sent no distress signal before disappearing.
President Obama has announced a major shift in U.S.-Cuba policy on Wednesday, just hours after the release of U.S. prisoner Alan Gross.
A barrage of gunfire and explosions came as heavily armed police stormed a café where an Iranian man held more than a dozen people hostage.
If confirmed, the killing of the major general represents the highest-ranking U.S. soldier to die in combat since the Vietnam War.
An Algerian official has confirmed that Air Algerie Flight AH5017, which went missing between Burkina Faso and Algiers, has crashed.
An Air Algerie plane, with 116 people on board, is believed to have crashed in a remote region near the Algeria-Mali border.
Major U.S. airlines, including Delta and United, are suspending service to Israel amid fears of missile strikes and safety concerns.